Warmup/Reflection- necessary for attendance

Mathematics

1 answer:

Pepsi [2]2 years ago

8 0

Answer:

x = 7

Step-by-step explanation:

-3 + 2x = 11

(group like terms)

2x = 11 + 3

2x = 14

(divide both sides by 2 to make x stand alone)

2x/2 = 14/2

x = 7

You might be interested in

Which one is correct? Please hurry <3

Levart [38]

First one (20 characters) hope this helped

4 0

2 years ago

Read 2 more answers

A toxic radioactive substance with the density of 4 mg/cm² is detected in the been detected in the ventilating ducts that was us

Kruka [31]

The formula for half-life is:

$A = P(0.5)^{t/h}$

A is the amount remaining, P is the initial amount, t is the time that has passed, and h is the half-life of the substance. Plug in the values that you know and solve:

$4 = P(0.5)^{35/20} \\ \\ 4 = P(0.5)^{1.75} \\ \\ P = \frac{4}{0.5^{1.75}} \\ \\ P \approx 13.4543426441$

Rounded to the nearest whole number, the density of the substance was about 13mg / cm².

8 0

2 years ago

HELPP ASAP PLS what is m A) 120° B) 75° C) 80° D) 85°

MariettaO [177]

The straight angle ;
60 + x = 180
So x = 120

Please give me a brainliest answer

8 0

2 years ago

Read 2 more answers

Write an equivalent exponential equation for the following three problems.

Naily [24]

Answer with step-by-step explanation:

We are given three different expressions and we are to write an equivalent exponential equation for them.